Use the periodic table to determine the molar mass of each of the following elements. Use the correct number of significant figures. Potassium (K):
39.10
g/mol
Osmium (Os):
190.23
g/mol
Manganese (Mn):
54.94
g/mol
Use the information provided below to answer the questions.

The isotope lead-208 (208Pb):
g/mol
The isotope strontium-87 (87Sr):
g/mol

In the particles are arranged in a regular, repeating pattern. a)a crystalline liquid b)a crystalline solid c)all gases d)all solids

What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.

How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.